control

Documentation

Index

• Variables
• func Decrypt(ciphertext []byte, key *[32]byte) (plaintext []byte, err error)
• func Encrypt(plaintext []byte, key *[32]byte) (ciphertext []byte, err error)
• func ExecFilter(file string, filters map[string]string) error
• func Get(location string, headers []string, timeout time.Duration) (io.ReadCloser, error)
• func NewEncryptionKey() (*[32]byte, error)
• type Configuration
  • func (c *Configuration) DoFilters() error
  • func (c *Configuration) Read(location string, headers []string, timeout time.Duration, encoded bool) error
• type Filter
  • func (f *Filter) UnmarshalJSON(b []byte) error
• type Filters
• type Modifier
• type SSM
  • func NewSSM(opts ...SSMOption) *SSM
  • func (s *SSM) GetParameter(path string) (string, error)
• type SSMOption

Variables

var Logger = log.New(os.Stderr, "", 0)

Logger is a STDERR logger

Functions

func Decrypt

func Decrypt(ciphertext []byte, key *[32]byte) (plaintext []byte, err error)

Decrypt decrypts data using 256-bit AES-GCM. This both hides the content of the data and provides a check that it hasn't been altered. Expects input form nonce|ciphertext|tag where '|' indicates concatenation.

func Encrypt

func Encrypt(plaintext []byte, key *[32]byte) (ciphertext []byte, err error)

Encrypt encrypts data using 256-bit AES-GCM. This both hides the content of the data and provides a check that it hasn't been altered. Output takes the form nonce|ciphertext|tag where '|' indicates concatenation.

func ExecFilter

func ExecFilter(file string, filters map[string]string) error

ExecFilter filters an individual file

func Get

func Get(location string, headers []string, timeout time.Duration) (io.ReadCloser, error)

Get fetches the control from a location and returns a io.ReadCloser

func NewEncryptionKey

func NewEncryptionKey() (*[32]byte, error)

NewEncryptionKey generates a random 256-bit key for Encrypt() and Decrypt(). It return an error if the source of randomness fails.

Types

type Configuration

type Configuration struct {
	Filters Filters
	BaseDir string
}

Configuration is the overall data structure unmarshalled from JSON

func (*Configuration) DoFilters

func (c *Configuration) DoFilters() error

DoFilters filters the files listed in the Configuration object

func (*Configuration) Read

func (c *Configuration) Read(location string, headers []string, timeout time.Duration, encoded bool) error

Read reads in the configuration and returns the object

type Filter

type Filter map[string]string

Filter is a set of key value pair to be filtered for a file

func (*Filter) UnmarshalJSON

func (f *Filter) UnmarshalJSON(b []byte) error

type Filters

type Filters map[string]Filter

Filters are a map of file names to key/value pairs

type Modifier

type Modifier struct {
	Type  string
	Value string
}

Modifier is the struct representing a value to be modified

type SSM

type SSM struct {
	Service ssmiface.SSMAPI
	// contains filtered or unexported fields
}

func NewSSM

func NewSSM(opts ...SSMOption) *SSM

New creates an SSM from a list of SSMOption functions

func (*SSM) GetParameter

func (s *SSM) GetParameter(path string) (string, error)

type SSMOption

type SSMOption func(*SSM)

SSMOption is a function to set ssm options